Nicolas, I apologize for reading your email but not the subject line. Obviously you are using the Gdal plugin. However, it would still be quite useful to have the whole XML style you are using to read in the problem PNG, so I can try to replicate.
Dane On Jan 22, 2010, at 10:12 AM, Dane Springmeyer wrote: > > On Jan 22, 2010, at 7:25 AM, Nicolas Gillet wrote: > >> >> Hello, >> >> Before to post a stupid bug ticket I prefer asking the mailing list. >> >> I have several big PNG rasters (4096x4096 PNG image with a pgw world >> file) >> Those png's have been generated with mapnik 0.6.1 library. >> >> In version 0.6.1 I could perfectly reuse them a source and generate >> tiles >> out of them. > > How are you generating tiles, and in what png format for source and in > the second rendering? png or png256? > >> With my built version of mapnik 0.7.0 library and plugin, > > Are you saying that you are using a custom plugin that you have > written? > >> when I render the >> same tile I get an horribly bad quality image. Seems to be highly >> compressed >> actually. >> >> I build mapnik lib and plugins myself under 0.6.1 and 0.7.0 >> If I use the plugin built with 0.7.0 sources I get a wrong image [1] > > I have read in your image under Mapnik 0.7.0 on Mac OSX and cannot, > replicate, it looks fine, when rendering to png and png256 formats. > >> If I use the plugin built with 0.6.1 sources I get a right image [2] > > Okay. > >> If I use the plugin from win32 binaries I get an error (application >> crashes) >> > > What plugin? Do you mean, if you use the large PNG raster with the new > 0.7.0 windows binaries? > >> I did not encounter this issue when using a tiff raster I got from >> another >> source. >> > > Okay, good to know. > >> So is it a bug, or is there something I missed ? >> > > Could be a bug, but hard to say without more information. > > Please attach your full XML stylesheet and give more information about > which plugin you are using. > > Dane > _______________________________________________ > Mapnik-users mailing list > [email protected] > https://lists.berlios.de/mailman/listinfo/mapnik-users _______________________________________________ Mapnik-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/mapnik-users
